We did it with Michelin, I don't think the Goodyears will fit, but you can do what we did, mount one and try it....



it was these in 235x45x18 .....http://www.tirerack.com/tires/tires....omCompare1=yes

 

Little know fact on the Eagle GT's is there are 2 different types, and both look alike. One carries a 50K warranty and one doesn't. I know in the 18's they don't. So which ones did you get? I had about 27K on mine before I ditched them for becoming too hard after less than 2 years (about 4/32 left).

 

Ouch..... $1,000.00 shipped, that's alot for a grocery getter .....

 

Hello to All,
I'm old school when it comes to tire pressure & I was taught that when you didn't have close to the tire manufacturer's suggested tire pressure that you take a chance of heating up & using your sidewall to much like a flat & causing unnecessary wear & more likely a blowout which did happen to my Mitsubishi Eclipse GT with 18" rims & low profile tires when my wife was driving, lucky for both only cost a rim & tire. Anyway I'm not a tire professional but have learned the hard way to use the tire pressure within at least 8lbs of recommended pressure. PS I also go to Pismo Beach with my truck & lower the tire pressure from 50psi to 10-12psi for grip but you have to remember that when your cornering you can bust a bead & end up on your sidewall & break it down, again from experience, which wasn't a good idea since I'd hookup the fifth wheel with the family inside & drive home on the same tires. I hope this helps.

 

? I went in person to "America's tires" he showed me the eagle GT and said they would fit in 235/45/18 and they do have a 50k warranty on them

 

I was told that also. Then when I mentioned during a tire rotation that it didn't look like I was going to get anywhere near 50K miles, they told me mine were not the 50K warranty ones. They come with 2 seperate speed ratings, V and Z, only the V has the 50K mile warranty. The Z does not. The ads for the Eagle GT's can be a little misleading. The 225/45/18's I had were Z rated. Just check the speed rating to be sure.

Also, a 235/45/18 is 26.32" tall. I'd make sure they fit as most can't fit anything over a 26.1" tire under the spring plate. Some have though.

 

Ok I jut checked and yes they are V rated. Well I guess as far as size goes ill have them put it on and see. If not a 235/40 would fit fine right?

 

@245x 40x18 you are 3 mm shorter than stock size, I am running that size on the SS now, corners awesome.

 

I'm running 245/40/18's as well. But yes a 235/40/18 will fit just fine.

 

Mine has the 50,000 mile warranty. They are the V rating. I would not have purchased them without a descent warranty rating.